I have my season pass there and it has been way legit this year. Could use more snow but it's on its way this week so can't complain too much. I'll just give you a breakdown and where to go.
Powder days: There are a couple options you have when there is fresh snow to be had. 1st you can head straight to 9990 via Tombstone. Take a right when you get off the lift. Go straight ahead and through a gate. There are awesome tree's and some open fields. Great stuff. The whole area is pretty accessible and quite easy to find something you like. Deschutes off of Tombstone is a similar type run and both force you down to a cat track that you'll have to take back down to Tombstone. It is a pain to lap but can be worth it.
Awesome tree's off of dreamscape and dreamcatcher, not as steep as other parts of the mountain but way fun nonetheless and the runs down to dreamscape are long.
Oh and anything you see above the lifts in the distance you can most certainly hike. That is where the best powder skiing is at the Canyons. A 30 minute hike from 9990 or Super Condor and you're going to be standing at the top of the sickest run of your life. Way easy to pick what area you want to go to from because all of the hike able terrain is visible from the runs. Really nice cliff drops and some fairly intense lines can be had.
Park: The park is way accessible step off the gondola and you're right at saddleback and ready to ski the park. The setup is pretty legit with some way fun smaller jumps and then the bigger 4 jump line. It can get crowded but it is always fun.
Groomers: Favorite groomers are probably the ones off of Tombstone. Easily lap able and long enough to make it worth your time. Plus you can really haul some serious ass.